DocumentCode
1184492
Title
A Digital System for Directional - Comparison Relaying
Author
Gallen, T.F. ; Breingan, W.D. ; Chen, M.M.
Author_Institution
Philli Electric Cpany
Issue
3
fYear
1979
fDate
5/1/1979 12:00:00 AM
Firstpage
948
Lastpage
956
Abstract
The results and conclusions of a study of a directional-comparison protection system for a transmission line are given. The laboratory investigation of this system with two minicomputers communicating with each other via power line carrier is described. The system includes a directional-comparison blocking relaying scheme with first zone high- speed tripping. Also included is an out-of- step blocking scheme for power swing conditions. After the successful laboratory test program, the system has been installed in the field on a 500 kV, 116 km (72 mile) transmission line. Some preliminary discussion of the field installation is given.
Keywords
Buffer storage; Circuit faults; Digital relays; Digital systems; Fault detection; Power system faults; Power system protection; Printers; Sampling methods; Testing;
fLanguage
English
Journal_Title
Power Apparatus and Systems, IEEE Transactions on
Publisher
ieee
ISSN
0018-9510
Type
jour
DOI
10.1109/TPAS.1979.319252
Filename
4113562
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